add-copyright-header

name	add-copyright-header
description	Verify and add the required copyright header to DotSerial C# source files. Use when creating a new .cs file or when a file is missing the header.

DotSerial Copyright Header Skill

Every .cs file in the DotSerial repository must start with the following header block. The header must be the very first content in the file, before namespace, using, or any other statement.

Required header template

Replace {FILENAME} with the actual file name (including .cs extension) and {ONE LINE SUMMARY} with a concise single-line description of the file's purpose.

// -----------------------------------------------------------------------
// <copyright file="{FILENAME}" company="Piergiorgio Vagnozzi">
//     Copyright (c) 2026 Piergiorgio Vagnozzi. All rights reserved.
//     Licensed under the MIT License.
//     See LICENSE file in the project root for full license information.
// </copyright>
// <summary>
//     {ONE LINE SUMMARY}
// </summary>
// <created>2026-05-01</created>
// -----------------------------------------------------------------------

How to check for missing headers

Search for files that do NOT start with the copyright block:

# Files in src/ missing the header
grep -rL "Copyright (c) 2026 Piergiorgio Vagnozzi" src/ --include="*.cs"

# Files in tests/ missing the header
grep -rL "Copyright (c) 2026 Piergiorgio Vagnozzi" tests/ --include="*.cs"

Rules

• The <created> date is always 2026-05-01 (project inception date) — do not change it.
• The company attribute is always Piergiorgio Vagnozzi.
• The header is required for all .cs files: source, tests, generated (if any).